51
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Su XW, Dai Z, Ma J, Liu MR, Shao XY, Jiang Y, Luo HM. [A survey of attitudes to and demands on internship in graduates majoring in preventive medicine in 6 colleges and universities in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:849-853. [PMID: 31357810 DOI: 10.3760/cma.j.issn.0254-6450.2019.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the internship of students majoring in preventive medicine in 6 colleges and universities in China, and provide reference suggestions for the improvement of internship arrangement. Methods: By using the method of combined clustering and convenient sampling, the fifth grades students majoring in preventive medicine in six universities in the eastern, central and western China were surveyed by using questionnaires to collect the information of their attitudes (to) and suggestions for clinical and public health internships. Results: A total of 596 students were surveyed. In terms of the benefits of clinical internship and public health internship, students who thought that the internship was fruitful accounted for >88%, and more students thought that reform is needed in clinical internship compared with public health internship. In clinical internship, the students through that the time arrangement was not appropriate enough (95, 39.58%), the content should be more detailed and in-depth (73, 30.42%) and the content did not conform to the professional direction (54, 22.50%). In public health internship, the students thought that the time arrangement was not appropriate (77, 45.56%), the content should be more detailed and standardized (65, 38.46%) and the types of internship bases should be more diversified (20, 11.83%). Conclusions: The undergraduates majoring in preventive medicine felt to be benefited from clinical practice and public health internships and thought they are of necessity. At the same time, there are still many problems which needs to be improved in the two types of internships. It is necessary to make joint efforts from students, teachers, colleges and practice bases to promote the continuous improvement of undergraduate internship.
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Affiliation(s)
- X W Su
- School of Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Z Dai
- Education and Training Department, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J Ma
- Education and Training Department, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M R Liu
- Education and Training Department, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Y Shao
- Education and Training Department, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Jiang
- School of Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - H M Luo
- Education and Training Department, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Abstract
The 1,2-dicarbonyl motif is vital to biomolecules, especially natural products and pharmaceuticals. Conventionally, 1,2-dicarbonyl compounds are prepared via an α-keto acyl chloride. Based on the methods used in nature, a transition-metal-free approach for the synthesis of an α-ketothioester reagent via the combination of an α-hydroxyl ketone, elemental sulfur and a benzyl halide is reported. Mechanistic studies demonstrate that the trisulfur radical anion and the α-carbon radical of the α-hydroxy ketone are involved in this transformation. The dicarbonylation of a broad range of amines and amino acids, and importantly, cross couplings with aryl borates to construct dicarbonyl-carbon bonds are realized under mild conditions by employing this stable and convenient α-ketothioester as a 1,2-dicarbonyl reagent. The dicarbonyl-containing drug indibulin and the natural product polyandrocarpamide C, which possess multiple heteroatoms and active hydrogen functional groups, can be efficiently prepared using the designed 1,2-dicarbonyl reagent.
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Affiliation(s)
- Ming Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Zhihong Dai
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China. .,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China.
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53
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Tang D, Wu Q, Yuan Z, Xu J, Zhang H, Jin Z, Zhang Q, Xu M, Wang Z, Dai Z, Fang H, Li Z, Lin C, Shi C, Xu M, Sun X, Wang D. Identification of key pathways and genes changes in pancreatic cancer cells (BXPC-3) after cross-talked with primary pancreatic stellate cells using bioinformatics analysis. Neoplasma 2019; 66:181020N786. [PMID: 31167532 DOI: doi.org/10.4149/neo_2018_181020n786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 01/22/2019] [Indexed: 11/03/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most malignant tumors with poor prognosis, and the interaction between activated pancreatic stellate cells (PSCs) and PDAC cells plays an important role in the development of PDAC. The aim of this study was to identify gene changes in BXPC-3 after cross-talked with PSCs and reveal their potential mechanisms. The gene expression profiling analysis of BXPC-3 was completed after co-cultured with primary PSCs for 48 h. The gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes pathway (KEGG) enrichment analyses were performed, and the differentially expressed genes (DEGs) were identified by Agilent GeneSpring GX software. In total, 3657 DEGs were identified in BXPC-3, including 1881 up-regulated genes and 1776 downregulated genes. GO analysis results showed that up-regulated DEGs were significantly enriched in biological processes (BP), including peptide metabolic process, response to stress, and electron transport chain; the down-regulated DEGs were significantly enriched in biological processes, including signaling, multicellular organismal development, and anatomical structure development. KEGG pathway analysis revealed that 19 pathways were upregulated and 32 pathways were downregulated, and that up-regulated DEGs were enriched in protein export and glutathione metabolism, while the down-regulated DEGs were enriched in axon guidance and focal adhesion. The top 10 up-regulated genes, and the top 10 down-regulated genes were identified. By constructing PPI network, we selected out 10 key genes (TP53, SRC, IL6, JUN, ISG15, CAD, STAT1, OAS3, OAS1, VIM) and significant pathways. The associated survival analysis was performed and the SRC, IL-6, ISG15, STAT1, OAS3, OAS1 and VIM were proved to be related to worse overall survival time of PDAC patients. In conclusion, the present study indicated that the identified DEGs promote our understanding of the molecular mechanisms underlying the interaction between pancreatic cancer cells and PSCs and might be used as molecular targets in the future to study the role of tumor microenvironment in the progression of PDAC.
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Affiliation(s)
- D Tang
- Department of General Surgery, Institute of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou, China
| | - Q Wu
- Clinical Medical College, Yangzhou University, Yangzhou, China
| | - Z Yuan
- Department of General Surgery, Anhui No. 2 Provincial People's Hospital, Hefei, China
| | - J Xu
- Department of General Surgery, Institute of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou, China
| | - H Zhang
- Department of General Surgery, Institute of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou, China
| | - Z Jin
- Department of General Surgery, Institute of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou, China
| | - Q Zhang
- Department of General Surgery, Institute of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou, China
| | - M Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China
| | - Z Wang
- Department of General Surgery, Institute of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou, China
| | - Z Dai
- Clinical Medical College, Yangzhou University, Yangzhou, China
| | - H Fang
- Clinical Medical College, Yangzhou University, Yangzhou, China
| | - Z Li
- Clinical Medical College, Yangzhou University, Yangzhou, China
| | - C Lin
- Clinical Medical College, Yangzhou University, Yangzhou, China
| | - C Shi
- Clinical Medical College, Yangzhou University, Yangzhou, China
| | - M Xu
- Clinical Medical College, Yangzhou University, Yangzhou, China
| | - X Sun
- Clinical Medical College, Yangzhou University, Yangzhou, China
| | - D Wang
- Department of General Surgery, Institute of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou, China
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54
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Tang D, Wu Q, Yuan Z, Xu J, Zhang H, Jin Z, Zhang Q, Xu M, Wang Z, Dai Z, Fang H, Li Z, Lin C, Shi C, Xu M, Sun X, Wang D. Identification of key pathways and gene changes in primary pancreatic stellate cells after cross-talk with pancreatic cancer cells (BXPC-3) using bioinformatics analysis. Neoplasma 2019; 66:446-458. [PMID: 30784291 DOI: 10.4149/neo_2018_180925n714] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 12/19/2018] [Indexed: 02/05/2023]
Abstract
It is well known that as the king of cancer, pancreatic ductal adenocarcinoma (PDAC) has relatively malignant biological behavior and poor prognosis. The interaction between pancreatic stellate cells and PDAC cells promotes the development of PDAC. The aim of this study was to describe gene characteristics in pancreatic stellate cell (PSCs) after cross-talked with BXPC-3 and unravel their underlying mechanisms. The expression profiling analysis of genes in PSCs was completed after co-cultured with primary BXPC-3 for 48h. The Kyoto Encyclopedia of Genes and Genomes pathway (KEGG) enrichment analysis and gene ontology (GO) analysis were performed, and the differentially expressed genes (DEGs) were identified by Agilent GeneSpring GX program. In total, 1804 DEGs were filtered out in PSCs, including 958 up-regulated genes and 846 downregulated genes. GO analysis showed that the up-regulated DEGs were significantly enriched in biological processes (BP) such as defense response, immune system process and immune response; the down-regulated DEGs were significantly enriched in biological regulation and cytoskeleton organization. KEGG pathway analysis showed that 28 pathways were upregulated and 5 were downregulated. By constructing PPI network, we selected out 10 key genes (IL6,IL8, IL1B, BCL2, CCL2, CSF2, KIT, ICAM1, PTPRC and IGF1) and significant enriched pathways. In conclusion, the current study suggests that the filtered DEGs contribute to our understanding of the molecular mechanisms underlying the interaction between PSCs and pancreatic cancer cells, and might be used as molecular targets to further the study the role of tumor microenvironment in the progression of PDAC.
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Affiliation(s)
- D Tang
- Department of General Surgery, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, China
| | - Q Wu
- Medical College of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Z Yuan
- Department of General Surgery, Anhui no. 2 Provincial People's Hospital, Hefei, China
| | - J Xu
- Department of General Surgery, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, China
| | - H Zhang
- Department of General Surgery, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, China
| | - Z Jin
- Department of General Surgery, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, China
| | - Q Zhang
- Department of General Surgery, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, China
| | - M Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China
| | - Z Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China
| | - Z Dai
- Medical College of Yangzhou University, Yangzhou University, Yangzhou, China
| | - H Fang
- Medical College of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Z Li
- Medical College of Yangzhou University, Yangzhou University, Yangzhou, China
| | - C Lin
- Medical College of Yangzhou University, Yangzhou University, Yangzhou, China
| | - C Shi
- Medical College of Yangzhou University, Yangzhou University, Yangzhou, China
| | - M Xu
- Medical College of Yangzhou University, Yangzhou University, Yangzhou, China
| | - X Sun
- Medical College of Yangzhou University, Yangzhou University, Yangzhou, China
| | - D Wang
- Department of General Surgery, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou, China
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Monnot G, Dai Z, Han A, de Jong A, Christiano A. 096 Identification of T cell receptor α and β chains responsible for AA pathogenesis via single cell TCR sequencing. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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56
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Perez-Lorenzo R, Wang E, Dai Z, Abdelaziz A, Sallee B, Chen J, Estrada J, Uhlemann A, Christiano A. 522 Gut microbiota is required for the development of alopecia areata. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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57
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Dai Z, Wang E, Lee E, de Jong A, Christiano A. 097 LFA-1 blockade prevents the onset of alopecia areata in C3H/HeJ mice. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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58
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Dai Z, Zeng W, Christiano A. 441 Targeting glycolysis metabolism prevents the onset of alopecia areata in C3H/HeJ mice. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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59
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Dai Z, Wu F, Zheng Z, Yokomi R, Kumagai L, Cai W, Rascoe J, Polek M, Chen J, Deng X. Prophage Diversity of 'Candidatus Liberibacter asiaticus' Strains in California. Phytopathology 2019; 109:551-559. [PMID: 30303769 DOI: 10.1094/phyto-06-18-0185-r] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Huanglongbing (HLB) is a highly destructive citrus disease and is associated with a nonculturable bacterium, 'Candidatus Liberibacter asiaticus'. 'Ca. L. asiaticus' in the United States was first found in Florida in 2005 and is now endemic there. In California, 'Ca. L. asiaticus' was first detected in Hacienda Heights in Los Angeles County in 2012 and has now been detected in multiple urban locations in southern California. Knowledge of 'Ca. L. asiaticus' strain diversity in California is important for HLB management. In this study, genomic diversity among 10 'Ca. L. asiaticus' strains from six California locations were analyzed using a next-generation sequencing (NGS) (Illumina MiSeq and HiSeq) approach. Draft genome sequences of 'Ca. L. asiaticus' strains were assembled. Sequences of the 16S ribosomal RNA gene and nrdB confirmed 'Ca. L. asiaticus' identity. Prophages were detected in all 'Ca. L. asiaticus' strains. The California 'Ca. L. asiaticus' strains formed four prophage typing groups (PTGs): PTG1, with type 1 prophage only (strains from Anaheim, San Gabriel, and Riverside); PTG2, with type 2 prophage only (strains from Hacienda Heights); PTG1-3, with both type 1 and 3 prophages (a strain from Cerritos); and PTG1-2, with both type 1 and type 2 prophages (a strain from La Habra). Analyses of the terL sequence showed that all California 'Ca. L. asiaticus' strains were not introduced from Florida but likely from locations in Asia. Miniature inverted-repeat transposable elements were found in all 'Ca. L. asiaticus' strains, yet, a jumping-out event was detected in the 'Ca. L. asiaticus' strain from Cerritos. Altogether, this study demonstrated that the NGS approach focusing on prophage variation was sensitive and effective in revealing diversity of 'Ca. L. asiaticus' strains in California.
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Affiliation(s)
- Z Dai
- 1 Department of Plant Pathology, South China Agricultural University, Guangzhou, Guangdong, China
| | - F Wu
- 1 Department of Plant Pathology, South China Agricultural University, Guangzhou, Guangdong, China
| | - Z Zheng
- 1 Department of Plant Pathology, South China Agricultural University, Guangzhou, Guangdong, China
| | - R Yokomi
- 2 United States Department of Agriculture (USDA)-Agricultural Research Service, San Joaquín Valley Agricultural Sciences Center, Parlier, CA, U.S.A
| | - L Kumagai
- 3 Plant Pest Diagnostic Center, California Department of Food and Agriculture, Sacramento, U.S.A
| | - W Cai
- 4 USDA Animal and Plant Health Inspection Service-Plant Protection and Quarantine, Beltsville, MD, U.S.A.; and
| | - J Rascoe
- 3 Plant Pest Diagnostic Center, California Department of Food and Agriculture, Sacramento, U.S.A
| | - M Polek
- 5 National Clonal Germplasm Repository for Citrus and Dates, Riverside, CA, U.S.A
| | - J Chen
- 2 United States Department of Agriculture (USDA)-Agricultural Research Service, San Joaquín Valley Agricultural Sciences Center, Parlier, CA, U.S.A
| | - X Deng
- 1 Department of Plant Pathology, South China Agricultural University, Guangzhou, Guangdong, China
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Miao PZ, Yang Y, Chen EB, Zhu GQ, Wang B, Dai Z. [Differential expressions analysis of piwi-interacting RNAs in hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2019; 26:842-846. [PMID: 30616319 DOI: 10.3760/cma.j.issn.1007-3418.2018.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigates the role of piwi-interacting RNAs (piRNA) in the occurrence and development of hepatocellular carcinoma. Methods: Second-generation small RNA sequencing was performed on cancer and paracancerous tissues, metastatic and non-metastatic liver cancer tissues of patients with liver cancer, and the sequencing data were filtered out for the common RNA sequences to be repeated. The piRNA predictor was used to forecast the possible new piRNA merged with the downloaded known piRNA to screen out distinction. A miRanda algorithm was used to predict the corresponding target genes and functional enrichment analysis. piRNA was selected for experimental functional (migration) analysis. An independent t-test was used to compare means between the two groups. Results: 66 772 piRNAs (known 149) were obtained by sequencing. 241 piRNAs were found in cancer and paracancerous tissues, and 1 634 piRNAs were found in metastatic and non-metastatic tumors. Analysis of the GO and KEGG pathways of the target genes of differential piRNAs revealed that they were mainly involved in cell adhesion. An experimental functional analysis was performed on the selected Pirna (PIR1/97), which showed that it promoted the migration of hepatoma cells (LM3: t = 8.829, P < 0.05; PLC: t = 7.318, P < 0.05). Conclusion: The expression levels of piRNA in hepatocellular carcinoma patients with cancer and paracancerous tissues, metastasis and non-metastatic liver cancer tissues are different and it could be entailed in the metastasis process of hepatocellular carcinoma. Hence, experimental functional analysis is required for research and experimental confirmation.
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Affiliation(s)
- P Z Miao
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai 200030, China
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Wang X, Gao X, Wang L, Dai Z, Fan B, Cui H, Liu Z. Pseudomyxoma extraperitonei in horseshoe kidney masquerading as renal hilar tumor: a case report. Onco Targets Ther 2018; 11:9027-9032. [PMID: 30588015 PMCID: PMC6296204 DOI: 10.2147/ott.s184305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Pseudomyxoma peritonei, a rare condition consisting of intraperitoneal mucinous tumors and ascites, most commonly arises from mucinous tumors of the appendix. Very rarely, mucinous deposits arise in the retroperitoneum without intraperitoneal involvement. This has been termed pseudomyxoma extraperitonei. It is a rare and poorly understood condition that is heterogeneous in its clinical behavior, and only a few cases presenting as localized disease in the retroperitoneum have been reported. In this paper, we report the first case of pseudomyxoma extraperitonei presenting as a simple renal hilar mass and mimicking a tumor of renal origin in a horseshoe-kidney patient. The patient underwent isthmusectomy and nephrectomy. Immunohistochemical staining suggested appendiceal origin. She remained alive without adjuvant therapy postoperatively, and no evidence of recurrence was present for 25 months.
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Affiliation(s)
- Xin Wang
- Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China,
| | - Xiang Gao
- Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China,
| | - Liang Wang
- Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China,
| | - Zhihong Dai
- Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China,
| | - Bo Fan
- Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China,
| | - Haoyu Cui
- Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China,
| | - Zhiyu Liu
- Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China,
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Dai Z, Kim C, Christiano A. 114 Blockade of Th2 and Th17 axes failed to prevent alopecia areata in C3H/HeJ grafted mice. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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64
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Griffiths G, Keegan E, Young E, Wotherspoon A, Palmer T, Lu K, Davis J, Alexander J, Jolly L, Nevers N, Delaunay F, Collins JM, Dimayuga I, Bergeron A, Samuleev P, Dai Z, Holliday K, Robel M, Knight K. Physical characterization of uranium oxide pellets and powder applied in the Nuclear Forensics International Technical Working Group Collaborative Materials Exercise 4. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-017-5678-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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65
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Zhang XY, Liang YX, Yan Y, Dai Z, Chu HC. Morphine: double-faced roles in the regulation of tumor development. Clin Transl Oncol 2017; 20:808-814. [DOI: 10.1007/s12094-017-1796-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 11/05/2017] [Indexed: 12/31/2022]
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66
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Cheng Y, Wang Y, Zhao J, Liu Y, Gao H, Ma K, Zhang S, Xin H, Liu J, Han C, Zhu Z, Wang Y, Chen J, Wen F, Li J, Zhang J, Zheng Z, Dai Z, Piao H, Li X, Li Y, Zhong M, Ma R, Zhuang Y, Xu Y, Qu Z, Yang H, Pan C, Yang F, Zhang D, Li B. P3.01-021 A Multicenter, Non-Interventional Study on Real World EGFR Testing and in Patients with IIIB/IV NSCLC in Northern China. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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67
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Cheng Y, Wang Y, Zhao J, Liu Y, Gao H, Ma K, Zhang S, Xin H, Liu J, Chengbo H, Zhu Z, Wang Y, Chen J, Wen F, Li J, Jie Z, Zheng Z, Dai Z, Piao H, Li X, Li Y, Zhong M, Ma R, Zhuang Y, Xu Y, Qu Z, Yang H, Pan C, Yang F, Zhang D, Li B. JCES 01.11 A Multicenter, Non-Interventional Study on Real World EGFR Testing and in Patients with IIIB/IV NSCLC in Northern China. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Dai Z, Lang W, Yang H, Tian J, Sun W, Pekbay B, Lin Y, Wang M, Cui B, Yang S, Li H, Luo L, Guo H, Zhang L. Validation of EORTC QLQ-OES18 for Chinese patients with esophageal cancer. Dis Esophagus 2017; 30:1-7. [PMID: 28859386 DOI: 10.1093/dote/dox046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 04/06/2017] [Indexed: 02/06/2023]
Abstract
The aim of this study is to evaluate the reliability, validity, and acceptability of the Chinese version of the EORTC QLQ-OES18 in patients with esophageal cancer. The questionnaire was translated according to the guideline of the EORTC. One hundred and forty-nine patients with esophageal cancer from Tianjin Medical University Cancer Institute and Hospital completed the Karnofsky performance scale (KPS) and the simplified Chinese EORTC QLQ-C30/OES18 scales during July 2013 to January 2014. The results were statistically analyzed by Cronbach's α coefficient, Spearman correlation test with multiple strengthen analysis, and Wilcoxon Rank Sum test. The internal consistency (Cronbach's α coefficient) of all four scales (dysphagia, eating, reflux, and pain) was 0.689-0.822, which were satisfactory or near satisfactory. The absolute values of correlation of each scale between EORTC QLQ-OES18 and EORTC QLQ-C30 were 0.002-0.750 while there was no significant difference between groups divided by KPS scores. We confirmed the Chinese version of EORTC QLQ-OES18 appears to be a reliable, valid, and acceptable instrument for measuring the health-related quality of life of patients with esophageal cancer in mainland China.
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Affiliation(s)
- Z Dai
- Key Laboratory of Cancer Prevention and Therapy, Department of Endoscopy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
| | - W Lang
- Tianjin Medical University, Tianjin, China
| | - H Yang
- Tianjin Medical University, Tianjin, China
| | - J Tian
- Xiangya School of Medicine, Central South University, Changsha, China
| | - W Sun
- Tianjin Medical University, Tianjin, China
| | - B Pekbay
- Erasmus University Rotterdam, Rotterdam, Netherlands
| | - Y Lin
- Tianjin Medical University, Tianjin, China
| | - M Wang
- Tianjin Medical University, Tianjin, China
| | - B Cui
- Tianjin Medical University, Tianjin, China
| | - S Yang
- Xiangya School of Medicine, Central South University, Changsha, China
| | - H Li
- Department of Esophageal Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - L Luo
- Department of Radiation Oncology, Tumor Hospital, Xiangya School of Medicine of Central South University, Changsha, China
| | - H Guo
- Tianjin Medical University, Tianjin, China
| | - L Zhang
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Lung Cancer Center, Department of Thoracic Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
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Dai Z, Nishihata Y, Urayama K, Komiyama N. P3684Early initiation of oral beta-blocker improves long-term survival in patients with acute myocardial infarction who underwent primary percutaneous coronary intervention. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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70
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Zhang L, Dai Z, Zhu W, Wu Z, Wu G. 704 Effects of plant extracts on amino acid metabolism in pig small-intestinal bacteria in vitro. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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71
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Nishihata Y, Nishida S, Torihara K, Kumasawa S, Dai Z, Komiyama N. P2506The importance of concomitant drugs in the settings of palliative care for the patients with advanced heart failure. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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72
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Zhou ZJ, Wang XY, Xu XY, Hu ZQ, Chen EB, Zhou SL, Wu WZ, Zhou J, Fan J, Dai Z. [High expression of hnRNPAB/Kap1 together promote poor prognosis in HCC]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:452-457. [PMID: 28763864 DOI: 10.3760/cma.j.issn.1007-3418.2017.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To further understand the interaction protein spectrum of heterogeneous ribonucleoprotein AB (hnRNP AB), and to investigate their clinical significance in hepatocellular carcinoma (HCC). Methods: We carried out mass spectrometry to reveal the specific peptides of KRAB-associated protein 1 (Kap1) and hnRNPAB, and verified their interaction by immunocoprecipitation and western blotting. Expression of hnRNPAB/Kap1 proteins were detected by immunohistochemical staining in the tissue microarrays. Categorical data were analyzed by the chi square test or Fisher exact test; enumeration data between groups were compared using Student t-test or Wilcocon signed rank test; the cumulative recurrence and survival rates were evaluated using the Kaplan-Meier method and the differences were assessed using the log-rank test. Results: We identified Kap1 as a molecular partner for hnRNPAB in HCCLM3 cells and HepG2 cells as well. We found that the 5-year survival rate of the Kap1high patients was significantly lower than the survival rate of those of the Kap1low group (36% vs 59% , HR = 1.67, P < 0.001). Similarly, Kap1high HCC patients had the poorest prognosis at 5-years, with higher cumulative recurrence rate than Kap1low patients (72% vs 54%, HR = 1.66, P = 0.001). Univariate and Multivariate analyses revealed that hnRNPAB /Kap1 alone (HR = 1.35 /1.28, P = 0.001) or in combination with Kap1 (HR =1.24 /1.27, P < 0.05) were independent prognostic indicators for overall survival and time to recurrence. Conclusion: In HCC cells, hnRNPAB and Kap1 form protein complexes. The expression levels of hnRNPAB alone or in combination with Kap1 in HCC patients are important because they provide not only a predictor for HCC prognosis but also a therapeutic target for future studies.
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Affiliation(s)
- Z J Zhou
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Dai Z, Xiao X, Jiang X. Nucleophilic disulfurating reagents for unsymmetrical disulfides construction via copper-catalyzed oxidative cross coupling. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Clynes R, Dai Z, Cerise J, Christiano A. 054 Regulatory natural killer cells are protective in alopecia areata. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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76
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de Jong A, Jabbari A, Dai Z, Xing L, Lee D, Price V, Duvic M, Norris D, Hordinsky M, Mackay-Wiggan J, Clynes R, Christiano A. 052 Identification of pathogenic T cell subsets in human alopecia areata. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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77
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Zhang Y, Liu F, Dai Z, Wu Q. The effect of Qing Huan Ling on the hypoglutamatergic schizophrenia model in mice. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.02.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
ObjectiveTo investigate the effect of Qing Huan Ling and (or) risperidone on activity and preferences behavior of the hypoglutamatergic schizophrenia model in mice.MethodsSeventy kunming mice were randomly divided into 5 groups, one group as placebo group. The rest groups intraperitoneal injection MK-801 continuously 14 day, then randomly numbered: model group, Qing Huan Ling group, risperidone groupand Qing Huan Ling combined risperidone group. Intragastric administration give corresponding drugs for each group one month, at the same time observe high activities and changes in the preferences of five groups.ResultsCompared with the blank group, activity of the rest model groups induced by MK-801 was increased (P < 0.05). After intragastric administration one month, model groups of high activity was decreased, especially risperidone combined Qing Huan Ling group. There was no statistical meaning in inquiry activity of five groups (P > 0.05). Compared with model group, latent period of step-through test was prolonged 35.5 s (P < 0.05), of step-down test was prolonged 11.4 s in risperidone combined Qing Huan Ling group.ConclusionThe combination of Qing Huan Ling and risperidone can suppress the high activity; also can protect harmed memory of the preference behavior in the hypoglutamatergic schizophrenia model in mice.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Dai Z, Nie GD. Recipients Inherit a Cardiovascular Risk Factor From Bone Marrow Donors: Implications for Screening of Donors? Am J Transplant 2016; 16:3318-3319. [PMID: 27554804 DOI: 10.1111/ajt.14023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 08/14/2016] [Accepted: 08/18/2016] [Indexed: 01/25/2023]
Affiliation(s)
- Z Dai
- Section of Immunology, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, China
| | - G D Nie
- School of Medicine, University of Texas Medical Branch, Galveston, TX
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Dai Z, Cai W, Hu F, Lan Y, Li L, Chung C, Caughey B, Zhang K, Tang X. Plasma Mitochondrial DNA Levels as a Biomarker of Lipodystrophy Among HIV-infected Patients Treated with Highly Active Antiretroviral Therapy (HAART). Curr Mol Med 2016; 15:975-9. [PMID: 26592244 PMCID: PMC5403959 DOI: 10.2174/1566524016666151123114401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 10/28/2015] [Accepted: 11/18/2015] [Indexed: 11/22/2022]
Abstract
Lipodystrophy is a common complication in HIV-infected patients taking highly active antiretroviral therapy. Its early diagnosis is crucial for timely modification of antiretroviral therapy. We hypothesize that mitochondrial DNA in plasma may be a potential marker of LD in HIV-infected individuals. In this study, we compared plasma mitochondrial DNA levels in HIV-infected individuals and non-HIV-infected individuals to investigate its potential diagnostic value. Total plasma DNA was extracted from 67 HIV-infected patients at baseline and 12, 24 and 30 months after initiating antiretroviral therapy. Real-time quantitative PCR was used to determine the mitochondrial DNA levels in plasma. Lipodystrophy was defined by the physician-assessed presence of lipoatrophy or lipohypertrophy in one or more body regions. The mitochondrial DNA levels in plasma were significantly higher at baseline in HIV-infected individuals than in non-HIV-infected individuals (p<0.05). At month 30, 33 out of 67 patients (49.2%) showed at least one sign of lipodystrophy. The mean plasma mitochondrial DNA levels in lipodystrophy patients were significantly higher compared to those without lipodystrophy at month 24 (p<0.001). The receiver operating curve analysis demonstrated that using plasma mitochondrial DNA level (with cut-off value <5.09 log10 copies/ml) as a molecular marker allowed identification of patients with lipodystrophy with a sensitivity of 64.2% and a specificity of 73.0%. Our data suggest that mitochondrial DNA levels may help to guide therapy selection with regards to HIV lipodystrophy risk.
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Affiliation(s)
| | | | | | | | | | | | | | - K Zhang
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA.
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80
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Dai Z, Liu Z, Gao Y, Wang L. Primary follicular non-Hodgkin's lymphoma of the ureter: A case report and literature review. Oncol Lett 2016; 11:3939-3942. [PMID: 27313721 PMCID: PMC4888145 DOI: 10.3892/ol.2016.4524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 03/08/2016] [Indexed: 11/23/2022] Open
Abstract
Ureteral cancer is a rare type of neoplasm, with the most prevalent forms including squamous cell carcinoma, transitional cell carcinoma and adenocarcinoma. Ureteral lymphoma is particularly uncommon, and forming a pre-operative diagnosis of the disease is often difficult. The current study describes the case of a 31-year-old man presenting with a space-occupying lesion located in the left lower ureter. Follicular non-Hodgkin's lymphoma was diagnosed via intraoperative frozen section and post-operative pathological analysis. The affected ureteric segment was excised, and the ureter was repaired by end-to-end anastomosis with insertion of a double-J tube for internal drainage. The patient was followed up for 10 months and presented with no signs of recurrence. The current study affirms the importance of pathological examination in the differential diagnosis of ureteral neoplasms and the selection of an appropriate treatment.
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Affiliation(s)
- Zhihong Dai
- Second Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Zhiyu Liu
- Second Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Yuren Gao
- Second Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Liang Wang
- Second Department of Urology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
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Ma J, Meng XD, Luo HM, Zhou HC, Qu SL, Liu XT, Dai Z. [Current status on management and needs related to education and training programs set for new employees at the provincial Centers for Disease Control and Prevention, in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:900-903. [PMID: 27346125 DOI: 10.3760/cma.j.issn.0254-6450.2016.06.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE In order to understand the current management status on education/training and needs for training among new employees working at the provincial CDC in China during 2012-2014, so as to provide basis for setting up related programs at the CDC levels. METHODS Based on data gathered through questionnaire surveys run by CDCs from 32 provincial and 5 specifically-designated cities, microsoft excel was used to analyze the current status on management of education and training, for new employees. RESULTS There were 156 management staff members working on education and training programs in 36 CDCs, with 70% of them having received intermediate or higher levels of education. Large differences were seen on equipment of training hardware in different regions. There were 1 214 teaching staff with 66 percent in the fields or related professional areas on public health, in 2014. 5084 new employees conducted pre/post training programs, from 2012 to 2014 with funding as 750 thousand RMB Yuan. 99.5% of the new employees expressed the needs for further training while. 74% of the new staff members expecting a 2-5 day training program to be implemented. 79% of the new staff members claimed that practice as the most appropriate method for training. CONCLUSIONS Institutional programs set for education and training at the CDCs need to be clarified, with management team organized. It is important to provide more financial support on both hardware, software and human resources related to training programs which are set for new stuff members at all levels of CDCs.
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Affiliation(s)
- J Ma
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Dai Z, Cerise J, de Jong A, Clynes R, Christiano A. 043 Regulatory natural killer cells in alopecia areata. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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83
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Dai Z, Cerise J, Petukhova L, Clynes R, Christiano A. 042 Alopecia areata reversal by il-7ra blockade via upregulation of the pd-1 signaling pathway. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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84
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Chen J, Dai Z, Abdelaziz A, Ivanov I, Christiano A. 470 The gut microbiome is required for the development of alopecia areata. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Chen F, Dai Z, Kang Y, Lv G, Keller ET, Jiang Y. Effects of zoledronic acid on bone fusion in osteoporotic patients after lumbar fusion. Osteoporos Int 2016; 27:1469-1476. [PMID: 26556733 PMCID: PMC4792656 DOI: 10.1007/s00198-015-3398-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 11/03/2015] [Indexed: 10/22/2022]
Abstract
UNLABELLED Treatment with zoledronic acid in osteoporotic patients with spinal fusion shortens the duration of time to fusion, improves the fusion rate, prevents the subsequent adjacent vertebral compression fractures, improves the clinical outcomes, and prevents immobilization-induced bone loss in the hip. INTRODUCTION The objective of the study was to explore the effects of zoledronic acid on the healing process in osteoporotic patients following spinal fusion in a randomized, placebo-controlled, and triple-blinded study. METHODS Seventy-nine osteoporotic patients with single-level degenerative spondylolisthesis were randomly assigned to receive either zoledronic acid infusion (zoledronic acid group) or saline infusion (controls) after spinal fusion. Functional radiography and CT scans were used to evaluate fusion status. Bone formation was graded into three categories: Grade A (bridging bone bonding with adjacent vertebral bodies), Grade B (bridging bone bonding with either superior or inferior vertebral body), or Grade C (incomplete bony bridging). A solid fusion was defined as less than 5° of angular motion with Grade A or B bone formation. Adjacent vertebral compression fractures (VCF) were assessed on MRI at 12 months after surgery. Serum level of carboxy terminal cross-linked telopeptide of type I collagen (β-CTX) and amino-terminal propeptide of type I procollagen (PINP) was measured. Bone mineral density (BMD) was measured by DXA. Oswestry Disability Index (ODI) was used to assess the clinical outcomes. RESULTS Grade A or B bridging bone was more frequently observed in zoledronic acid group at 3, 6, and 9 months post-operation compared to the control group (p < 0.05). At 12 -months post-operation, bridging bone and solid fusion were not significantly different between groups. No patients in zoledronic acid group showed aVCF, whereas six patients (17 %) in the control group did (p < 0.05). Both β-CTX and PINP were suppressed in zoledronic acid group. BMD at the femoral neck decreased rapidly and did not return to the preoperative level in the controls at 3 (-1.4 %), 6 (-2.5 %), and 12 (-0.8 %) months after surgery. Zoledronic acid prevented this immobilization-induced bone loss and increased BMD. ODI showed the improved clinical outcomes compared with controls at 9 and 12 months post-surgery. CONCLUSION Treatment with zoledronic acid in osteoporotic patients with spinal fusion shortens the time to fusion, improves the fusion rate, prevents subsequent aVCFs, and improves clinical outcomes.
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Affiliation(s)
- F Chen
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Z Dai
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China.
| | - Y Kang
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - G Lv
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - E T Keller
- Department of Urology, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
- Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Y Jiang
- Osteoporosis and Arthritis Lab, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Urology, University of Michigan, Ann Arbor, MI, 48109, USA
- Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI, 48109, USA
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Dai Z, Bao W, Li S, Li H, Jiang J, Chen S. Enhancement of Polyethylene Terephthalate Artificial Ligament Graft Osseointegration using a Periosteum Patch in a Goat Model. Int J Sports Med 2016; 37:493-9. [PMID: 26990720 DOI: 10.1055/s-0042-102258] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Z. Dai
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, China
| | - W. Bao
- Department of PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - S. Li
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, China
| | - H. Li
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, China
| | - J. Jiang
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, China
| | - S. Chen
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, China
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Zhang Y, Liu F, Dai Z, Wu B, Wu Q. The effect of Qing Huan Ling combined risperidone on the open field behavior of schizophrenic mice model. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
ObjectiveTo observe the effect of Qing Huan Ling and (or) risperidone on locomotor activity and explorative behavior of schizophrenia mice model by open field test.MethodsSeventy kunming mice were randomly divided into 5 groups, one group as blank group. The rest groups ip MK-801 continuously 14 day, then randomly numbered: model group, risperidone group, Qing Huan Ling group and risperidone combined Qing Huan Ling group. Ig give corresponding drugs for each group 4 weeks, observe the change of locomotor activity and explorative behavior by open field test.ResultsAfter Ig 4 weeks, compared with the blank group, there were no obvious difference in locomotor activity and explorative behavior between risperidone group, Qing Huan Ling group and the combined group. Compared with the model group, risperidone had statistics meaning in the repression of explorative behavior (P < 0.05),the combined group has statistics meaning in the repression of locomotor activity and explorative behavior (78.92 ± 36.18 m vs. 186.92 ± 41.08 m, P < 0.01).ConclusionQing Huan Ling regulate the central nervous system of schizophrenia mice model; when combined with risperidone, it restrain the central nervous system of schizophrenia mice model and the effect is stronger than risperidone alone.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Affiliation(s)
- Zeguang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; East China Normal University; 3663 North Zhongshan Rd. Shanghai 200062 P. R. China
| | - Zhihong Dai
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; East China Normal University; 3663 North Zhongshan Rd. Shanghai 200062 P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; East China Normal University; 3663 North Zhongshan Rd. Shanghai 200062 P. R. China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin 300071 P. R. China
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Zhang Z, Dai Z, Jiang X. Copper-Catalyzed Aerobic Oxidative Dicarbonylation of Indoles toward Solvatochromic Fluorescent Indole-Substituted Quinoxalines. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500332] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zeguang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; East China Normal University; 3663 North Zhongshan Rd. Shanghai 200062 P. R. China
| | - Zhihong Dai
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; East China Normal University; 3663 North Zhongshan Rd. Shanghai 200062 P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; East China Normal University; 3663 North Zhongshan Rd. Shanghai 200062 P. R. China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin 300071 P. R. China
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Song L, Kang H, Liu D, Dai Z, He J, Wang B, Zhao Y, Wang X, Xi W. Dimedone Derivative {2-[(4-Hydroxy-phenylamino)- methylene]-5,5-dimethyl-cyclohexane-1,3-dione} Plays an Important Role in Breast Cancer Treatment. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i9.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Purpose: To investigate the effect of 2-[(4-hydroxy-phenylamino)-methylene]-5,5-dimethyl-cyclohex (HPDH) on mammary carcinogenesis induced by 7,12-dimethylbenz(a)anthracene in female Sprague Dawley rats.Methods: Among three groups of rats (50 each) used in the study, the control group was fed standard diet alone, ibuprofen group received standard diet containing 1200 mg/kg ibuprofen while HPDH group was administered standard diet containing 1200 mg/kg HPDH. The treatment was for 10 days for all the groups. All the animals received 20 mg of DMBA intragastrically by gavage. Clinical parameters for the rats were recorded weekly. Micrometer caliper was used to measure the diameter of all the tumors at the end of the experiment and tumor volume calculated. Histological evaluation was performed using hematoxylin and eosin (H&E) staining. High performance liquid chromatography (HPLC) was used to determine the level of HPDH and ibuprofen in the serum of the animals.Results: The data revealed a significant decrease in the number of rats with mammary tumor, number of tumors/rat and tumor volume by 54, 72 and 75 %, respectively, in HPDH group compared to control group. The ibuprofen- treated rats also showed significant decrease in the number of rats with tumor, number of tumors/rat and tumor volume by 43, 55, and 59 %, respectively. Treatment of rats with HPDH increased the latency period of tumor induction significantly (p < 0.005). Median detection period (50 % of tumors) was 92, 83 and 56 days, respectively, in HPDH, ibuprofen and control groups, respectively, after DMBA induction.Conclusion: These results demonstrate that HPDH possesses strong chemopreventive activity against mammary carcinogenesis.Keywords: Carcinogenesis, Mammary tumor, Median detection period, Tumor, Latency period, Chemopreventive activity, Ibuprofen
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Dai Z, Zhong J, Xiao P, Zhu Y, Chen F, Pan P, Shi H. Gray matter correlates of migraine and gender effect: A meta-analysis of voxel-based morphometry studies. Neuroscience 2015; 299:88-96. [PMID: 25943478 DOI: 10.1016/j.neuroscience.2015.04.066] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 04/24/2015] [Accepted: 04/27/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND An increasing number of neuroimaging studies have revealed gray matter (GM) anomalies of several brain regions by voxel-based morphometry (VBM) studies in migraineurs. However, not all the studies reported entirely consistent findings. Our aim is to investigate concurrence across VBM studies to help clarify the structural anomalies underpinning this condition. METHODS A systematic search of VBM studies of patients with migraine and healthy controls (HC) published in PubMed and Embase databases from January 2000 to March 2014 was conducted. A quantitative meta-analysis of whole-brain VBM studies in patients with migraine compared with HC was performed by means of anisotropic effect size version of signed differential mapping (AES-SDM) software package. RESULTS Nine studies comprising 222 patients with migraine and 230 HC subjects were included in the present study. Compared to HC subjects, the patients group showed consistent decreased GM in the posterior insular-opercular regions, the prefrontal cortex, and the anterior cingulate cortex. Results remained largely unchanged in the following jackknife sensitivity analyses. Meta-regression analysis showed that a higher percentage of females in the patient sample was associated with decreased GM in the right dorsolateral prefrontal cortex. CONCLUSIONS This is the first quantitative whole-brain VBM meta-analysis in migraine showing strong evidence of brain GM anomalies within the pain-processing neural network. Further longitudinal investigations are needed to determine whether these structural anomalies are reversible with effective treatment on migraine.
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Affiliation(s)
- Z Dai
- Department of Radiology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - J Zhong
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - P Xiao
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - Y Zhu
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - F Chen
- Department of Radiology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - P Pan
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China.
| | - H Shi
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China.
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92
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Zeng YQ, Liu XS, Wu S, Zou C, Xie Q, Xu SM, Jin XW, Li W, Zhou A, Dai Z. Kaempferol Promotes Transplant Tolerance by Sustaining CD4+FoxP3+ Regulatory T Cells in the Presence of Calcineurin Inhibitor. Am J Transplant 2015; 15:1782-92. [PMID: 25808405 DOI: 10.1111/ajt.13261] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 02/01/2015] [Accepted: 02/05/2015] [Indexed: 01/25/2023]
Abstract
Calcineurin inhibitor cyclosporine is widely used as an immunosuppressant in clinic. However, mounting evidence has shown that cyclosporine hinders tolerance induction by dampening Tregs. Therefore, it is of paramount importance to overcome this pitfall. Kaempferol was reported to inhibit DC function. Here, we found that kaempferol delayed islet allograft rejection. Combination of kaempferol and low-dose, but not high-dose, of cyclosporine induced allograft tolerance in majority of recipient mice. Although kaempferol plus either dose of cyclosporine largely abrogated proliferation of graft-infiltrating T cells and their CTL activity, both proliferation and CTL activity in mice treated with kaempferol plus low-dose, but not high-dose, cyclosporine reemerged rapidly upon treatment withdrawal. Kaempferol increased CD4+FoxP3+ Tregs both in transplanted mice and in vitro, likely by suppressing DC maturation and their IL-6 expression. Reduction in Tregs by low dose of cyclosporine was reversed by kaempferol. Kaempferol-induced Tregs exhibited both allospecific and non-allospecific suppression. Administering IL-6 abrogated allograft tolerance induced by kaempferol and cyclosporine via diminishing CD4+FoxP3+ Tregs. Thus, for the first time, we demonstrated that kaempferol promotes transplant tolerance in the presence of low dose of cyclosporine, which allows for sufficient Treg generation while minimizing side effects, resulting in much-needed synergy between kaempferol and cyclosporine.
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Affiliation(s)
- Y Q Zeng
- Department of Nephrology, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - X S Liu
- Department of Nephrology, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - S Wu
- Center for Regenerative and Translational Medicine, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - C Zou
- Department of Nephrology, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - Q Xie
- Center for Regenerative and Translational Medicine, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - S M Xu
- Center for Regenerative and Translational Medicine, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - X W Jin
- Center for Regenerative and Translational Medicine, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - W Li
- Center for Regenerative and Translational Medicine, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - A Zhou
- The Cardiovascular Research Center, Warren Alpert Medical School of Brown University, Providence, RI
| | - Z Dai
- Center for Regenerative and Translational Medicine, the Second Clinical College, Guangzhou University of Chinese Medicine, and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, P. R. China
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93
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Dai Z, Ang LW, Yuan JM, Koh WP. Association between change in body weight after midlife and risk of hip fracture-the Singapore Chinese Health Study. Osteoporos Int 2015; 26:1939-47. [PMID: 25868509 PMCID: PMC4498249 DOI: 10.1007/s00198-015-3099-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 03/03/2015] [Indexed: 01/29/2023]
Abstract
UNLABELLED The relationship between change in body weight and risk of fractures is inconsistent in epidemiologic studies. In this cohort of middle-aged to elderly Chinese in Singapore, compared to stable weight, weight loss ≥10 % over an average of 6 years is associated with nearly 40 % increase in risk of hip fracture. INTRODUCTION Findings on the relationship between change in body weight and risk of hip fracture are inconsistent. In this study, we examined this association among middle-aged and elderly Chinese in Singapore. METHODS We used prospective data from the Singapore Chinese Health Study, a population-based cohort of 63,257 Chinese men and women aged 45-74 years at recruitment in 1993-1998. Body weight and height were self-reported at recruitment and reassessed during follow-up interview in 1999-2004. Percent in weight change was computed based on the weight difference over an average of 6 years, and categorized as loss ≥10 %, loss 5 to <10 %, loss or gain <5 % (stable weight), gain 5 to <10 %, and gain ≥10 %. Multivariable Cox proportional hazards regression model was applied with adjustment for risk factors for hip fracture and body mass index (BMI) reported at follow-up interview. RESULTS About 12 % experienced weight loss ≥10 %, and another 12 % had weight gain ≥10 %. After a mean follow-up of 9.0 years, we identified 775 incident hip fractures among 42,149 eligible participants. Compared to stable weight, weight loss ≥10 % was associated with 39 % increased risk (hazard ratio 1.39; 95 % confidence interval 1.14, 1.69). Such elevated risk with weight loss ≥10 % was observed in both genders and age groups at follow-up (≤65 and >65 years) and in those with baseline BMI ≥20 kg/m(2).There was no significant association with weight gain. CONCLUSIONS Our findings provide evidence that substantial weight loss is an important risk factor for osteoporotic hip fractures among the middle-aged to elderly Chinese.
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Affiliation(s)
- Z. Dai
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Block MD1, 12 Science Drive 2, Singapore 117549, Singapore
| | - L.-W. Ang
- Epidemiology and Disease Control Division, Ministry of Health, Singapore, Singapore
| | - J.-M. Yuan
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - W.-P. Koh
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Block MD1, 12 Science Drive 2, Singapore 117549, Singapore
- Office of Clinical Sciences, Duke-NUS Graduate Medical School Singapore, 8 College Road Level 4, Singapore 169857, Singapore
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94
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Leung KS, Li YH, Liu Y, Wang H, Tam KF, Chow D, Wan Y, Ling S, Dai Z, Qin L, Cheung WH. Effect of daily short-duration weight-bearing on disuse-induced deterioration of musculoskeletal system. J Musculoskelet Neuronal Interact 2015; 15:207-14. [PMID: 26032214 PMCID: PMC5133725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVES To investigate deterioration of musculoskeletal system due to prolonged disuse and the potential of daily short-duration weight-bearing as countermeasures. METHODS Twenty-four adult male Sprague-Dawley rats were divided into Control Group (CG, no intervention), Tail-suspension Group (TG, tail-suspension without treatment), and Weight-Bearing Group (WBG, tail-suspension with 20 min/day, 5 days/week body weight loading). After four weeks of treatment, femur and tibia, soleus and extensor digitorum longus were evaluated for bone and muscle quality respectively. Tensile properties of bone-tendon insertion (BTI) were evaluated using patella-patellar tendon complex. RESULTS Disuse induced deterioration on bone, muscle, and BTI after four weeks. Compared with CG, TG and WBG showed significant decrease in bone mineral density (BMD) of trabecular bone in distal femur (4.3-15.2%), muscle mass (31.3-52.3%), muscle cross-sectional area (29.1-35%), and failure strength of BTI (23.9-29.4%). Tensile test showed that the failure mode was avulsion of bone at the BTI. No significant difference was detected between TG and WBG for all assessments on bone, muscle, and BTI. CONCLUSIONS Disuse caused deterioration of bone, muscle, and BTI while daily short-duration of weight-bearing did not prevent this deterioration. Mechanical stimulation with higher intensity and longer duration may be necessary to prevent musculoskeletal deterioration resulted from prolonged disuse.
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Affiliation(s)
- K-S. Leung
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, PR China
| | - Y-H. Li
- State key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, PR China
| | - Y. Liu
- State key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, PR China
| | - H. Wang
- State key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, PR China
| | - K-F. Tam
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, PR China
| | - D.H.K. Chow
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, PR China
| | - Y. Wan
- State key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, PR China
| | - S. Ling
- State key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, PR China
| | - Z. Dai
- State key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, PR China
| | - L. Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, PR China,The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen, PR China,Corresponding author: Ling Qin, PhD, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, NT, Hong Kong. E-mail:
| | - W-H. Cheung
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, PR China
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95
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Zhang S, Gao X, Ma Y, Jiang J, Dai Z, Yin X, Min W, Hui W, Wang B. Expression and significance of SATB1 in the development of breast cancer. Genet Mol Res 2015; 14:3309-17. [PMID: 25966097 DOI: 10.4238/2015.april.13.10] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Special AT-rich sequence binding protein 1 (SATB1) is a recently discovered gene regulator that can promote the growth and metastasis of breast cancer. However, its expression in different stages of breast cancer development have not been examined. We explored the role of SATB1 in the development of breast cancer by detecting SATB1 expression levels in different stages of breast cancer. SATB1 expression was determined using an immunohistochemical streptavidin peroxidase method; the relationship between clinicopathological features of breast cancer and SATB1 expression was analyzed using the X(2) test. Positive rates of SATB1 protein in normal breast tissue, normal breast ductal hyperplasia tissue, precancerous lesions of breast cancer, non-invasive cancer, early invasive carcinoma, and invasive breast cancer tissue were, respectively, 6.25 (2/32), 6.4 (3/47), 20.4 (10/49), 45.0 (9/20), 52.9 (9/17), and 76.6% (72/94). SATB1 in the latter 3 groups was significantly higher than in the first 3 groups (P < 0.05). The positive rate of SATB1 protein in invasive non-special types of breast cancer (88.5%, 54/61) was significantly higher than in the special type of invasive breast cancer (54.5%, 18/33) and early invasive breast cancer (52.9%, 9/17) (P < 0.05). SATB1 protein expression in breast cancer with lymph node metastasis was generally increased, and the difference was statistically significant (P < 0.05). SATB1 protein expression showed an increasing trend in different stages of breast cancer development. Overexpression indicated poor prognosis.
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Affiliation(s)
- S Zhang
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Gao
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y Ma
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Jiang
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Z Dai
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Yin
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - W Min
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - W Hui
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - B Wang
- Oncology of the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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96
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Pang J, He X, Ma C, Zhao L, Li Q, Dai Z. Hybrid monitor for both beam position and tilt of pulsed high-current beams. Rev Sci Instrum 2014; 85:093305. [PMID: 25273717 DOI: 10.1063/1.4895643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A Hybrid beam monitor, integrated with both azimuthal and axial B-dot probes, was designed for simultaneous measurement of both beam position and beam angle for pulsed high-current beams at the same location in beam pipe. The output signals of axial B-dot probes were found to be mixed with signals caused by transverse position deviation. In order to eliminate the unwanted signals, an elimination method was developed and its feasibility tested on a 50-Ω coaxial line test stand. By this method, a waveform, shape-like to that of input current and proportional to the tilt angle, was simulated and processed by following integration step to achieve the tilt angle. The tests showed that the measurement error of displacement and tilt angle less than 0.3 mm and 1.5 mrad, respectively. The latter error could be reduced with improved probes by reducing the inductance of the axial B-dot probe, but the improvement reached a limit due to some unknown systemic mechanism.
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Affiliation(s)
- J Pang
- Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - X He
- Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - C Ma
- Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - L Zhao
- Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - Q Li
- Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - Z Dai
- Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
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97
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Brang D, Towle VL, Suzuki S, Dai Z, Hillyard SA, Kohrman MH, Tao JX, Grabowecky M. Electrocorticographic (ECoG) recordings demonstrate that peripherally presented sounds activate extrastriate visual cortex. J Vis 2014. [DOI: 10.1167/14.10.1134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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98
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Zhu X, Liu Y, Zhao P, Dai Z, Yang X, Li Y, Qiu M, Zhang Z. Gpr177-mediated Wnt Signaling is Required for Fungiform Placode Initiation. J Dent Res 2014; 93:582-8. [PMID: 24736288 DOI: 10.1177/0022034514531985] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 03/24/2014] [Indexed: 11/15/2022] Open
Abstract
Fungiform papillae are formed as patterned rows on the surface of the anterior tongue at early organogenesis and contain one taste bud in each papilla to form one of the important sensory organs. Despite the essential role of Wnt/β-catenin signaling in controlling the development of fungiform taste papillae, the universal function of Wnt ligands in the initiation of the fungiform placode has not been completely elucidated. Here, by Shh (Cre) -mediated oral epithelial deletion of Wntless (Gpr177), a regulator essential for intracellular Wnt trafficking, we demonstrate that an overall function of Wnts is required for initiation of the fungiform placode. Multiple Wnts are expressed in the tongue epithelium at E11.5 before initiation of the fungiform placodes. Epithelial Gpr177 loss-of-function, associated with reduction of canonical Wnt signaling in lingual epithelium as exhibited by a loss of TopGal activity and Axin2 expression, results in the failure of fungiform placode initiation, as assessed by diminished expression of several taste placode molecular markers. Moreover, LiCl treatment of Gpr177 epithelial-deficient tongue explants at E11.5, but not at E12.5, restores tongue placode formation, demonstrating that Wnt ligands in the tongue surface prior to but not after fungiform placode initiation are responsible for fungiform papilla initiation. Epithelium-specific expression of an active β-catenin in the Gpr177-deficient tongue leads to fungiform papillae generation, suggesting that an intra-epithelial response to Wnts is required for placode initiation. Together, these results suggest that Gpr177 controls epithelial initiation of the fungiform placode through signaling via epithelial Wnt ligands.
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Affiliation(s)
- X Zhu
- Institute of Developmental and Regenerative Biology, College of Life and Environmental Science, Hangzhou Normal University, 16 XueLin Street, Xiasha, Hangzhou 310036, Zhejiang, China
| | - Y Liu
- Institute of Developmental and Regenerative Biology, College of Life and Environmental Science, Hangzhou Normal University, 16 XueLin Street, Xiasha, Hangzhou 310036, Zhejiang, China
| | - P Zhao
- Institute of Developmental and Regenerative Biology, College of Life and Environmental Science, Hangzhou Normal University, 16 XueLin Street, Xiasha, Hangzhou 310036, Zhejiang, China
| | - Z Dai
- Institute of Developmental and Regenerative Biology, College of Life and Environmental Science, Hangzhou Normal University, 16 XueLin Street, Xiasha, Hangzhou 310036, Zhejiang, China
| | - X Yang
- Institute of Developmental and Regenerative Biology, College of Life and Environmental Science, Hangzhou Normal University, 16 XueLin Street, Xiasha, Hangzhou 310036, Zhejiang, China
| | - Y Li
- Institute of Developmental and Regenerative Biology, College of Life and Environmental Science, Hangzhou Normal University, 16 XueLin Street, Xiasha, Hangzhou 310036, Zhejiang, China
| | - M Qiu
- Institute of Developmental and Regenerative Biology, College of Life and Environmental Science, Hangzhou Normal University, 16 XueLin Street, Xiasha, Hangzhou 310036, Zhejiang, China
| | - Z Zhang
- Institute of Developmental and Regenerative Biology, College of Life and Environmental Science, Hangzhou Normal University, 16 XueLin Street, Xiasha, Hangzhou 310036, Zhejiang, China
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99
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Dai Z, Zhang S, Xie Q, Wu S, Su J, Li S, Xu Y, Li XC. Natural CD8+CD122+ T cells are more potent in suppression of allograft rejection than CD4+CD25+ regulatory T cells. Am J Transplant 2014; 14:39-48. [PMID: 24219162 DOI: 10.1111/ajt.12515] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 08/12/2013] [Accepted: 08/13/2013] [Indexed: 01/25/2023]
Abstract
Despite extensive studies on CD4+CD25+ regulatory T cells (Tregs), their application in adoptive transfer therapies is still not optimal in immune-competent wild-type (WT) animal models. Therefore, it is compelling to search for more potent Tregs for potential clinical application. Mounting evidence has shown that naturally occurring CD8+CD122+ T cells are also Tregs. However, their suppression in allograft rejection, efficiency in suppression and underlying mechanisms remain unclear. Using a murine allotransplantation model, we reported here that CD8+CD122+ Tregs were actually more potent in suppression of allograft rejection and underwent more rapid homeostatic proliferation than their CD4+CD25+ counterparts. Moreover, they produced more IL-10 and were more potent in suppressing T cell proliferation in vitro. Deficiency in IL-10 in CD4+CD25+ and CD8+CD122+ Tregs resulted in their reduced but equal suppression in vivo and in vitro, suggesting that IL-10 is responsible for more effective suppression by CD8+CD122+ than CD4+CD25+ Tregs. Importantly, transfer of CD8+CD122+ Tregs together with the administration of recombinant IL-15 significantly prolonged allograft survival in WT mice. Thus, for the first time, we demonstrate that naturally arising CD8+CD122+ Tregs not only inhibit allograft rejection but also exert this suppression more potently than their CD4+CD25+ counterparts. This novel finding may have important implications for tolerance induction.
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Affiliation(s)
- Z Dai
- Center for Regenerative and Translational Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangdong Provincial Hospital of Chinese Medicine and the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
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100
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El-Gazzar A, Cai X, Reeves RS, Dai Z, Caballero-Benitez A, McDonald DL, Vazquez J, Gooley TA, Sale GE, Spies T, Groh V. Effects on tumor development and metastatic dissemination by the NKG2D lymphocyte receptor expressed on cancer cells. Oncogene 2013; 33:4932-40. [PMID: 24141776 PMCID: PMC3994187 DOI: 10.1038/onc.2013.435] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 09/13/2013] [Indexed: 12/16/2022]
Abstract
The stimulatory NKG2D lymphocyte receptor together with its tumor-associated ligands enable the immune system to recognize and destroy cancer cells. However, with dynamic changes unfolding, cancers exploit NKG2D and its ligands for immune evasion and suppression. Recent findings have added yet another functional dimension wherein cancer cells themselves coopt NKG2D for their own benefit to complement the presence of its ligands for self stimulation of parameters of tumorigenesis. Those findings are here extended to in vivo tumorigenicity testing by employing orthotopic xenotransplant breast cancer models in mice. Using human cancer lines with ectopic NKG2D expression and RNAi-mediated protein depletion among other controls, we show that NKG2D self-stimulation has tumor promoting capacity. NKG2D signals had no notable effects on cancer cell proliferation and survival but acted at the level of angiogenesis, thus promoting tumor growth, tumor cell intravasation and dissemination. NKG2D-mediated effects on tumor initiation may represent another factor in the observed overall enhancement of tumor development. Altogether, these results may impact immunotherapy approaches, which currently do not account for such NKG2D effects in cancer patients and thus could be misdirected as underlying assumptions are incomplete.
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Affiliation(s)
- A El-Gazzar
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - X Cai
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - R S Reeves
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Z Dai
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - A Caballero-Benitez
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - D L McDonald
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - J Vazquez
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - T A Gooley
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - G E Sale
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - T Spies
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - V Groh
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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